| Project/Area Number |
23592833
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Prosthetic dentistry
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| Research Institution | Tohoku University |
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Principal Investigator |
KEI KUBO 東北大学, 歯学研究科(研究院), 大学院非常勤講師 (10431511)
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| Co-Investigator(Kenkyū-buntansha) |
SASAKI Keiichi 東北大学, 大学院歯学研究科, 教授 (30178644)
OGAWA Toru 東北大学, 大学病院, 講師 (50372321)
YODA Nobuhiro 東北大学, 大学院歯学研究科, 助教 (20451601)
SUENAGA Hanako 東北大学, 大学病院, 助教 (00508939)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | インプラント支台パーシャルオーバーデンチャー / インプラント / 義歯床下圧 / インプラント義歯 / 義歯床下圧力 / 生体内測定 / 支持 / 生体内 |
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| Research Abstract |
This study aimed to reveal effects of the number and position of implants which support a partial overdenture (I-POd) on mechanical loads exerted onto the abutment tooth of the denture and on the residual ridge beneath the denture.Two implants were placed at the second premolar (imp1) and the second molar (imp2) position in edentulous area of model. Load onto the abutment tooth was measured by a piezo-electric 3D-force transducer. Load exerted on residual ridge beneath the denture was measured by a tactile sheet-sensor.Measurements were performed in four test conditions as follows: no implants supporting the denture, imp1 supporting the denture, imp2 supporting the denture and imp1 and imp2 supporting the denture.Loads onto the abutment tooth and residual ridge beneath the denture base were significantly associated with the implant number and position of I-POd. Application of implants beneath the denture base contributes to reduce the loads onto the abutment tooth and residual ridge.
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